4,536 research outputs found

    Teaching Sport Psychology to the XBox Generation: Further evidence for game-based learning

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    Objective: To extend recent research examining the impact of game-based activities on the learning experience of undergraduate psychology students. Design: A counterbalanced repeated measures design was employed to evaluate students’ learning experiences following their involvement in active game-based learning activities. Method: Students on a Level 5 sport psychology module (N=134) were asked to participate in four practical classes demonstrating the impact of psychological factors (e.g. anxiety) on sports performance. Two sessions were designed for each practical: one included the use of active video games (e.g. Kinect Sports); the other included a traditional active game-based activity (e.g. Reaction Time Game). Students were randomly assigned to one of two groups in order to facilitate counterbalancing and to ensure that all students completed two active video game (AVG) and two non-AVG tasks. Following each practical, students provided ratings of perceived usefulness, interest/engagement, and enjoyment using a seven-point Likert scale. These data will be analysed via one way repeated measures analyses of covariance (ANCOVA), with students’ experience of AVGs being the covariate. The impact of sessions on students’ academic motivation and performance were also assessed and analysed via one-way ANOVAs. Results: Data is currently being collected alongside a semester one module. Results will be reported during the presentation. Conclusions: It is anticipated that the findings will provide further evidence to support the use of AVGs in the teaching of undergraduate psychology, and that the increased sophistication of AVG technology may be harnessed to provide multiple benefits for students in higher education

    Wii Learning: An innovative techniques for teaching sport psychology

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    Carbonisation of biomass-derived chars and the thermal reduction of a graphene oxide sample studied using Raman spectroscopy

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    Chars and carbonised chars were produced from three different oxygen-rich precursors (Pinus radiata wood, Phormium tenax leaf fibres, and sucrose crystals). These non-graphitisable carbons were analysed with Raman spectroscopy in order to study the nanostructural development which occurs with increasingly severe heat treatments up to approximately 1000 °C. The thermal reduction of a graphene oxide sample was similarly studied, as this is considered to involve the development of nanometre-scale graphene-like domains within a different oxygen-rich precursor. Increasing the heat treatment temperatures used in the charring and carbonisation processes, led to significant changes in a number of parameters measured in the Raman spectra. Correlations based on these parameter changes could have future applications in evaluating various char samples and estimating the heat treatment temperatures employed during their manufacture. After production heat treatment temperatures exceeded 700 °C, the Raman spectra of the carbonised chars appeared to be largely precursor independent. The spectra of these carbonised chars were similar to the spectra obtained from thermally-reduced graphene oxides, especially when compared to a wide range of other carbonaceous materials analysed using this particular methodology. Partial reduction of a graphene oxide sample due to reasonably mild laser exposures during Raman analysis was also observed

    Effect of exotic S=+1 resonances on KL0pK^0_L p scattering data

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    We consider the effect of an exotic S=+1 Θ+\Theta^+ resonance on the scattering of neutral kaons off protons. Explicit results are presented for the KL0pK^0_L p total cross sections.Comment: 2 pages, 3 figure

    Sorption of sulfamethoxazole, sulfachloropyridazine and sulfamethazine onto six New Zealand dairy farm soils

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    We have investigated the sorption potential of three sulfonamides (SAs) in six New Zealand dairy farming soils using a modified batch equilibrium method employing 0.005 M CaCl₂ as background solution. Both liquid and solid phases were extracted to analyse for the antibiotic concentrations in order to avoid underestimation that may arise a result of photolysis or biotic degradation. The experimental data were later used to construct Freundlich isotherms to determine the effective distribution coefficients. Low log Koc value for all SAs suggests considerable leaching potential for SAs under conditions that are conducive for leaching. The sorption affinity for all soils followed the trend SCP>SMZ>SMO

    Length scale dependence of dynamical heterogeneity in a colloidal fractal gel

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    We use time-resolved dynamic light scattering to investigate the slow dynamics of a colloidal gel. The final decay of the average intensity autocorrelation function is well described by g_2(q,τ)1exp[(τ/τ_f)p]g\_2(q,\tau)-1 \sim \exp[-(\tau/\tau\_\mathrm{f})^p], with τ_fq1\tau\_\mathrm{f} \sim q^{-1} and pp decreasing from 1.5 to 1 with increasing qq. We show that the dynamics is not due to a continuous ballistic process, as proposed in previous works, but rather to rare, intermittent rearrangements. We quantify the dynamical fluctuations resulting from intermittency by means of the variance χ(τ,q)\chi(\tau,q) of the instantaneous autocorrelation function, the analogous of the dynamical susceptibility χ_4\chi\_4 studied in glass formers. The amplitude of χ\chi is found to grow linearly with qq. We propose a simple --yet general-- model of intermittent dynamics that accounts for the qq dependence of both the average correlation functions and χ\chi.Comment: Revised and improved, to appear in Europhys. Let

    Gordon Valentine Manley and his contribution to the study of climate change: a review of his life and work

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    British climatologist and geographer, Gordon Manley (1902–1980), is perhaps best known for his pioneering work on climate variability in the UK, for establishing the Central England Temperature series and, for his pivotal role in demonstrating the powerful relationship between climate, weather, and culture in post-World War II Britain. Yet Manley made many contributions, both professional and popular, to climate change debates in the twentieth century, where climate change is broadly understood to be changes over a range of temporal and spatial scales rather than anthropogenic warming per se. This review first establishes how Manley's work, including that on snow and ice, was influenced by key figures in debates over climatic amelioration around the North Atlantic between 1920s and 1950s. His research exploring historical climate variability in the UK using documentary sources is then discussed. His perspectives on the relationship between climate changes and cultural history are reviewed, paying particular attention to his interpretation of this relationship as it played out in the UK. Throughout, the review aims to show Manley to be a fieldworker and an empiricist and reveals how he remained committed to rigorous scientific investigation despite changing trends within his academic discipline

    Analysis of the flavonoid component of bioactive New Zealand mānuka (Leptospermum scoparium) honey and the isolation, characterisation and synthesis of an unusual pyrrole

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    The flavonoid components of New Zealand mānuka (Leptospermum scoparium) honey have been quantified in a series of 31 honeys of varying non-peroxide antibacterial activity to clarify discrepancies between previous studies reported in the literature. Total flavonoid content was 1.16 mg/100 g honey. The principal flavonoids present were pinobanksin, pinocembrin, luteolin and chrysin and together these represented 61% of the total flavonoid content. 1, 2-formyl-5-(2-methoxyphenyl)-pyrrole, which was weakly correlated with the non-peroxide antibacterial activity, was isolated from the flavonoid fraction and separately synthesised. 1 did not display inhibitory activity against Staphylococcus aureus in vitro and thus the origin of the correlation, which is still unknown, is not a direct contribution

    Studying carbonisation with raman spectroscopy

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    Raman spectroscopy can provide fast and non-destructive analysis of carbonaceous materials. As it is able to detect nanometre-sized structural features, Raman spectroscopy is widely used in the study of carbon nanotubes, fullerenes, graphenes, and many other carbon-rich materials. Raman analysis has previously shown potential for estimating the heat treatment temperatures (HTT) employed in the preparation of Japanese cedar charcoals which suggested future usefulness in quality control . In the current work, Raman spectroscopy was used to investigate the nanostructural development which had occurred within various chars prepared and carbonised at a range of heat treatment temperatures between ≈ 340°C and 1000°C. Chars were produced from sucrose sugar as standard precursor of high purity and two sources of biomass common in New Zealand (Radiata pine wood and Harakeke leaf fibres). In chars produced at lower HTTs, signals could be detected which were interpreted as representing hydrogen-rich amorphous carbon structures. In contrast, the Raman spectra of well-carbonised chars produced at higher HTTs featured signals consistent with graphene-like structures with coherent domains limited in size to below a few nanometres across. Measurement of such signals provides the ability to evaluate the extent of nanostructural development, identify char samples which are ‘undercooked’ when compared to other char samples, and estimate effective HTTs used in the production of a given char sample. More detailed Raman analysis of Radiata-derived chars was carried out, including analysis of chars produced from carbonising pyrolysis tars. Results of Raman analysis were correlated to H/C atom ratios obtained through elemental analysis for these chars produced from Radiata pine
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